Mixing apparatus



Nov. 23 1926.

H. BLUM MIXING APPARATUS Filed August 17. 1925 2 Sheets-Sheet 1 I if w Ln w m Nov; 23 1926.

1,607,811 H. BLUM MIXING APPARATUS Filed August 17, 1925 2 Sheets-Sheet2 of one of the Patented Nov. 23, 1926.

UNITED STATES 1,607,811 PATENT OFFICE.

HOSMER BLUM, OF SAN FRANCISCO, CALIFORNIA.

MIXING APPARATUS.

Application filed August 17, 1925. Serial No. 50,537.

The present invention relates to mixing apparatus of the type especiallyadapted for mixing beverages. It is to be understood,

however, that the apparatus may be used for nation of the liquid placedtherein. Another.

object is to provide an apparatus capableof thoroughly and quicklymixing the l quids or fiuidic materials placed therein by violentagitation. A further object is to prevent the violently agitated liquidfrom sloppmg or spilling. A. still further object is to pr o vide meansfor quickly attaching the liquid containing receptacle to and removingit from the mixing device.

In order to achieve these and other objects, I provide an apparatuswhich has but one moving part in contact with the liquid, and that part,preferably, has no hearings or journals into which the liquid mightpenetrate, and which'would have to'be taken apart for cleaning. Thismoving part is preferably a flexible diaphragm, forming a portion of thewall of the container or receptacle, and is caused to vibrate, byoutside forces,'to set up pulsating currents in the liquid within saidreceptacle.

Amore complete description of a preferred embodiment of the inventionwill now be given, with reference to the accompanying drawings, whereinFig. 1 is a part sectional elevation of the complete mixing apparatus.

3' Fig. 2 is a detailed end elevation, enlarged, ec'centrically mountedpitman ends. p

Fig. 3 is a vertical section of one of the receptacles with itsmounting.

Fig. 4 is a plan view of the receptacle.

Fig. 5 is a sectional plan taken on the line 5-5 of Fig. 3. A Fig; 6 isa vertical section of a modified form of receptacle. In the drawings,the reference numeral 1 designates a liquid containing mixing vessel orreceptacle, which may be made of glass, metal, or any othersuitable-material, and is preferably formed with circular 'cross sectionand outwardly flaring sides, as shown. The bottom of the receptacle 1,as shown in Fig. 3, is a flexible diaphragm 2, formed of rubber or othersuitable material, which is preferably removable, and mounted in anyconvenient manner. For example, I have shown said diaphragm 2 as havingits peripheral edge set or clamped in aring 3, preferably metal, andsaid ring is clamped between a shoulder at formed upon an annular flange5 secured to the lower portion of the receptacle and a plug member 6screwed into said flange. Thus by unscrewing said plug member, thediaphragm 2 may be removed for cleaning or replacement, and when saiddiaphragm is in place, and the plug member screwed home, the entireassembly forms a liquid containing receptacle with a flexible bottom.

Above the flexible bottom or diaphragm 2, the receptacle 1 is providedwith a partition or false bottom 7, which may be removable for cleaning,if desired, and may be secured in the position indicated in Fig. 3 byany suitable means, not shown. The false bottom 7 is formed withapertures 8, Figs. 3 and 5, to permit the liquid to pass through it, andabove said apertures are positioned baflies or deflectors 9 which causethe liquid passing upwardly through the apertures 8 to enter thereceptacle 1 with a swirling or tangential motion, as indicated by thear-.

rows in Figs. 3 and 4. For this purpose, the deflectors 9 are closelycontiguous to the receptacle wall at 10, and to. the false bottom at 11,their ends 12 being open to allow the fluid to passthrough. v

It will be readily understood that, if the receptacle 1 be partiallyfilled with liquid, and the diaphragm 2 be rapidly vibrated, by anysuitable outside source, said liquid will be violently agitated, and onaccount of the positioning of the apertures 8 and the deflectors 9, thath'eli cally and upwardly directed pulsating currents will be set up insaid liquid, as indicated by the arrows in Figs. 3 and .4, therebycausing a. complete 1 I may provide some suitabledeflecthg means, as forexample a series of inclin baffles 13, Figs. 3 and 4, secured to andpro- Fig. 2.

jecting inwardly from the wall of said receptacle near its upper end,such baffles being positioned to re-direct the ascending helical currentin a downward direction.

The bottom' plug-member 6 is provided with a neck 14 and a bottom flange15, the latter serving as a base upon which the receptacle may stand.The neck 14 is hollow, and preferably interiorly tapered, as shown inFig. 3, to adapt it for separable connection with the means forvibrating the diaphragm 2. Although any suitable means may be employedfor vibrating said diaphragm, I prefer to use a pulsating air current,and as a preferred means for supplying such an air current, 'I haveshown the apparatus illustrated in detail in Figs. 1, 2 and 3.

An electric or other motor 16, Fig. 1, is housed within a suitablecasing 17, which may be vented as shown at 18. The top 19 of said casingis preferably secured directly to the motor 16, as shown at 20, toinsure rigidity, and is provided with one or more flanged cap members21, there being two such cap members shown in Fig. 1. A flexiblediaphragm 22, formed of leather or other suitable material, is placedbeneath each cap member 21, the edge portion of said diaphragm beingclamped between said member and the casing top 19. Each diaphragm 22 isconnected by a pitman rod 23 with an eccentric 24 mounted upon the shaft25 of the motor 16. The connection between the diaphragm and the pitmanrod is preferably made by means of two rigid plates or washers 26secured to said rod and clamping the central portion of the diaphragmbetween them." A spring 27 Fig. 3, may be inserted between the diaphragm22 and the cap member 21. Each eccentric 24 is preferably provided witha ball hearing 28 for the pitinan rod end, as shown in The cap members21, one of which is shown in section in Fig. 3, are formed withupstanding tubular nipples 29, exteriorly tapered to fit-within thenecks 14 of the receptacle bottom members 6. Thus when a receptacle 1 isfitted upon one of the nipples 29, as shown in said Fig. 3,*it is notonly held firmly in upright position, but a communicating passage isestablished between the chamber-30 below the receptacle diaphragm 2 andthe chamber 31 above the power diaphragm 22, so that, when the latter isvibrated by the motor 16, acting through the pitman rod 23, a'ulsatingair current is caused to act upon t e bottom of receptaclediaphragm 2, causing it to vibrate and so agitate the liquid containedwithin the receptacle 1 as described above.

I have shown in Fig. 6 a slightly modified form of device embodying theprinciples of my invention. In this construction, the receptaclediaphragm 2 is mounted in a chambered member 32 positioned to one sideof the receptacle 1, and connected therewith by a tubular nipple 33, thebottom ring or flange member 5 of said receptacle having a tight andrigid bottom 34. The chambered member 32 is extended upwardly in theform of a handle 36 which may be grasped conveniently, and whose upperend is connected with the receptacle 1 by a brace 37, as shown. of thedevice is exactly like that of the previously described form, thevibrations of the, diaphragm 2 producing pulsating currents in theliquid'within the chambered member 32, which currents passing into thebottom of the receptacle 1 through the nipple 33, are directed by thedeflectors 9 in ascending helical paths as before. 7

Having thus described my invention, what- I claim as new and desire toprotect by Letters Patent of the United States is 1. A mixing apparatuscomprising a re ceptacle having a movable wall portion, means with whichsaid receptacle is adapted for removable association for vibrating saidwall portion to produce pulsations in the fluid contents of thereceptacle, and means within said receptacle for directing saidpulsations.

2. A mixing apparatus comprising a receptacle having a flexible memberforming a portion of its wall, means with which said receptacle isremovably associated for vibrating said flexible member to producepulsations in the fluid contents of the receptacle, and means withinsaid receptacle for directing said pulsations.

3. A mixing apparatus comprising a receptacle having a movable bottom,means with which said receptacle is adapted for removable associationfor vibrating said bottom to produce pulsations in the fluid contents ofthe receptacle, and means within said receptacle for directing saidpulsations.

4. A mixing apparatus comprising a receptacle, a flexiblediaphragmforming the bottom of said receptacle, means with which said receptacleis adapted for removable association for vibrating said diaphragm toproduce pulsations in the fluid contents of the receptacle, and meanswithin said recep: tacle for directing said pulsations.

5. A mixing apparatus comprising a receptacle, a flexible diaphragmremovably associated therewith and forming a bottom The operation ofthis form I therefor, means with which said receptacle eiated forvibrating said wall portion to produce pulsations in the fluid contentsof the receptacle, and means within said receptacle for directing saidpulsations into a helically ascending current.

7'. A mixing apparatus comprising a receptacle having a movable wallportion, means for vibrating said wall portion to produce pulsations inthe fluid contents of the receptacle, means within said receptacle fordirecting said pulsations into a helically ascending current, and meansfor re-directing said current downwardly.

8. A mixing apparatus including a receptacle provided near its base witha fluid passage, vibratory means for causing a rapid reciprocal flow offluid into and from the receptacle through said passage, and means fordirecting the fluid flow from said passage tangentially int-o saidreceptacle.

9. A mixing apparatus including a receptacle provided with a transversebottom wall having a fluid passage, a movable wall beneath the bottomwall for precluding the escape of fluid from said receptacle throughsaid passage, and means with which said receptacle is removablyassociated for oper ating said movable wall to cause a rapid reciprocalflow of fluid into and from the receptacle through said passage.

10. A mixing apparatus including a re ceptacle provided with atransverse bottom formed with a fluid passage, a flexible diaphragmbeneath-said transverse bottom wall for precluding the escape of fluidfrom the receptacle through said passage, and means i with which saidreceptacle is removably associated for vibrating said flexible diaphragm.

11. A mixing apparatus including a receptacle, a movable wall at thebase thereof for precluding the escape of fluid therefrom, and a porteddividing wall within the receptacle above said movable bottom Wall, saidreceptacle provided with a tubular neck-affording a communication to theunderside' of the movable wall.

12. A mixing apparatus including a receptacle provided with a movablebottom wall, a ported wall within the receptacle above the bottom wall,means associated with the ports of the ported wall for directing fluidpassing upwardly therethrough tan-' gentially into the receptacle, andmeans with which the receptacle is adapted for removable association forrapidly moving said bottom wall to create a fluid flow through saidreceptacle ported wall.

13. A mixin apparatus including a receptacle provi ed on its inner facenear its top with a plurality of angularly extended downwardly inclineddirecting vanes, said lar base, a receptacle carried thereby andprovided near its bottom with a transversely disposed ported wall, amovable member between the receptacle and the'base for precluding thepassage of fluid from the receptacle through said tubular base, and

means for operating said movable member through said tubular base forcausing a reciprocal flow of fluid to and from thereceptacle through theports of said wall.

16. A mixing apparatus comprising a receptacle having a movable wallportion, and means for directing a pulsating current of air against theexterior of said wall portion to produce vibrations therein.

17. A mixing apparatus comprising a receptacle having "a flexible wallportion, and mechanism with which said receptacle is separablyassociated, said mechanism being adapted to direct a pulsating currentof air against the exterior of said wall portion to produce vibrationstherein.

18. A mixing apparatus comprising a casing having an aperture in itswall, means within said casing for supplying a pulsating, current of airthrough said aperture, a receptacle adapted for separable associationwith said aperture, and a flexible diaphragm forming a portion ofthewall of said receptacle and adapted to be vibrated by said pulsatingair current.

In testimony whereof I have slgned my name to this specification.

HOSMZER BLUM.

